ORGANIZATION OF THE 
UNITED STATES DEPARTMENT OF AGRICULTURE 
October 20, 1925 
Secretary of Agriculture . W. M. Jardine. 
Assistant Secretary R. W. Dunlap. 
Director of Scientific Work 
Director of Regulatory Work Walter G.Campbell 
Director of Extension Work C. W. Warburton. 
Director of Information Nelson Antrim Crawford. 
Director of Personnel and Business Admin- 
istration W. W. Stockberger. 
Solicitor R. W. Williams. 
Weather Bureau Charles F. Marvin, Chief. 
Bureau of Agricultural Economics Thomas P. Cooper, Chief. 
Bureau of Animal Industry John R. Mohler, Chief. 
Bureau of Plant Industry William A. Taylor, Chief. 
Forest Service W. B. Greeley, Chief. 
Bureau of Chemistry C. A. Browne, Chief. 
Bureau of Soils Milton Whitney, Chief. 
Bureau of Entomology L. O. Howard, Chief. 
Bureau of Biological Survey E. W. Nelson, Chief. 
Bureau of Public Roads Thomas H. MacDonald, C/iief. 
Bureau of Home Economics Louise Stanley, C/n>/. 
Bureau of Dairying C. W. Larson, Chief. 
Fixed Nitrogen Research Laboratory F. G. Cottrell, Director. 
Office of Ex-periment Stations E. W. Allen, Chief. 
Office of Cooperative Extension Work C. B. Smith, Chief. 
Library Claribel R. Barnett, Librarian. 
Federal Horticultural Board C. L. Marlatt, Chairman. 
Insecticide and Fungicide Board J. K. Haywood, Chairman. 
Packers and Stockyards Administration John T. Caine, In charge. 
Grain Futures Administration J. W. T. Duvel, In charge. 
This bulletin is a joint contribution from 
Bureau of Public Roads Thomas H. MacDonald, C/zze/. 
Bureau of Agricultural Economics Thomas P. Cooper, Chief. 
Bureau of Animal Industry John R. Mohler, Chief. 
76 
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